Nipper-motion drive for cotton-combers.



H. A. OWEN.

NIPPER MOTION DRIVE FOR COTTON COMBERS.

APPLICATION FILED ocT. 26. 1909.

1,157,033. Patented Oct. l19, 1915.

2 SHEETS-SHEET l.

HUIT.,

COLUMBIA PLANOGRAPH c0.,wAsHlNu1oN. D. c.

II. A. OWEN.

NIPPER MOTION DRIVE FOR COTTON COMBERS.

APPLICATION FILED ocT. ze. 1909.

Patented Oct. 19, 1915.

2 SHEETS-SHEET' 2.

TED STASESA AHENRY A. OWEN, oF WHITINSVILLE, MASSACHUSETTS, assioiioia To 'riiE ,WRITIN- MACHINE WORKS, 0E wHIf.iii\iSvIELE, MAsSaoiiusE'r'rs, A CORPORATION QE MASSACHUSETTS.

Viiiis'inrfii)'iii'on DRIVE Eon ooTroN-coiiBEEs.

To cZZ 'whom t may concern.' o Be it known that I, HENRY A. OWEN, aV

citizen of the UnitedfStatesai1d a resident o IVhitinsville, in the. county of vWorcesterv and Commonwealth of'Mass'achusetts, have invented certain new and luseful Improve?.

. ments in Nipper-Motion'Drivies for Cotton- Combers, of which the following is a full,

clear, and concise Specification sufficient'to enable any'person-'Skilled'in the art to make and use the same. Y Y

'/Ihe invention 'isa new construction and arrangement of parts of a wnipper-rnotionV drive for cotton combers, and seeks to `im, prove the operation and 'smoothness of the running thereof, and particularly to reduce vibration in Vhigh speed v cotton Vcombers whereof the nipper-knives cooperate with fixed cushion 'plates and are required toV alternate from open to closed condition with great rapidity. The results'statediare ac-- complishedbv thecombination with certain fi of the Operating Pfl-Pts of the drvrtgimcha- I nism of la' spring-vie'lding drivingfconnection, the nature and relation .of which tothey said parts is hereinbelow fully explainedi Y and made the subject ofthe Several claims appended hereto.

In the two ,sheets of dra-wings which form a4 part of this specification, Figure 1 is a7 transverse section of portions of a high speed comber of the AHeilmanntype, as will l4`4 be recognized by those nfamiliar 'with this art, and `shows suiiicient of such machine to illustrate the relation thereto o f the d rive motion, also shown, and constituting5 this invention. 1 Figs. 2 and 3 are respectively" rside and front elevations of the nipper-lever and nipper-cam-lever and theirV interconnecting Spring-vielding driving connection; and Fig. 4 is a front nelevation of Fig. 1 with Y 'certain parts removed. i

Theframe of the combing machine illustrated comprises yan upright v'standard marked l, which is one of sveral'similar standards all carried `by the horizontal' girder 2 and forming with it the fixed frame work for the Several combing heads ofthemachine. There is one Siic'h'iipright standard between each combing head and its next adjacent head. The combing heads are all p,

of identical construction and each includes a nipper frame 3 carried on the upper part of the frame work, and provided with the Specification of LettersnPatent.

yL isiialcushion plate 4. ."I`hernipperknife 5, which Vcooperatesy with the cushion plate, Vis

`rauen'reti oct. 19,1915.. Y Appiieatioaie'd october 26,1909. seriai No. 524,691. 'i

`carried ontrhe ends f'the'knife levers 6 my* which are fulcrumed -on' a shaft 7, also. carriedbv the nipperfraiine.'v4 The rear ends of the knife levers areconnected with Jthe nipper motion' drive constituting this invention vby means of the` connecting rods 8. In the 1' high speed comber,-which is' hereinjilliistratedthe nipper-frame'is stationary and holdsoit-s cushion plate perina'nentlv in asingle operative position whereink its nippei knife cooperates therewith to hold the cOttoIi during the combii'ig and; alsofthe detaching operations, the said knifebeing oscilla't'ed on its Shaft aXisfZ from its open, upper position The pai-aannam nie; projecting. aia,

vV to its closed.` lower position.v It isrrequir'ed a heldfbywthe Dipper mechanism just Vdef scribed, 'is combeaami thereafter iiaeieileciV pieced and delivered are not shown in full, the same having no'direetrelation to the present invention." The location of combing shaft liow'everpisrepresented at 10 andthe calender roll andfsliver apron at 11 and 12 respectively. i L' ff 'Iohedrivefor the nipper motion above re! f ferred to'comprises a longitudinal rock shaft 13 Vvherein termed the' ni'pper-shaft, which is jo'iirnaled inthe frame standards 1 andcarries fast upon it a number ofrearwardly eX` tending nippershaftarmsl4, one for each ofy the ycoiinectiiig rods v8, land lalso a for'- wardly extending operating lever arm 15 herein termed the nipperle'ver. Iliere may be ysecured tothe nipp/er-shaft l'as vmanyV rearward nipper'jshaft.arms 14 as may be de,- Sir'e'd to be operated4 by a single nipperulever 15, and their connection with their'respective rods Smayibe made with facilitiesfor M adjustment as indicated in Fig. 1. 1 The nip-v per Shaft Servesas a fulcruni bearing .upon which the nipper lever oscillates the arms'f14 `aiidfthereby the severalconiiected nipperknives.v The nipper lever itself is adapted to be actuated by means having the capacity of limitediiiov'einent relatively thereto and against thetenSion- Of a suitable spriiigyield--v ing connection, andfor this purpose itis formed with a comparatively short stub arm 15@V and a relatively longer arm 15b. The

end ofthe longer arm is provided with an offset ear 16 by which it is connected with one endgof a heavy helical spring 17. The other end of the spring is connected to a corresponding ear 1Sb on a reciprocating member 18 which is positively driven, either directly or otherwise, from some rotary element of the comber, as for instance, the usual nipper cam 19 thereof. The said positively-driven member 18, is preferably directly actuated by the nipper cam and formed as a usual cam lever which is fulcrumed on the nipper-shaft adjacent and parallel tothe stub arm 15a, so that it may thus occupy the space between the two laterally projecting lugs 2O and 21 formed thereon. At the point marked 18a it carries the cam roller engaged by the cam groove, and it is preferably extended downwardly from this point` as shown, Vin order` to accommodate the length of the spring. The said spring, however, can be variously adapted to the construction of the levers and the other parts, in obvious manner.

rThe camvimparted motion of the lever 18 is transmitted to the nipper lever, in one direction, through the driving connection formed bv the spring, and in the other direction through its engagement with an abutment carried by the uppermost lug 20. Such Van abutment mav be formed by a set screw Q2 tanned into the lug and hence adjustable. The driving movement transmitted through the spring serves to close the nipper knives against their respective, fixed cushion plates, and accomplishes such effect. without jar or tendency to rebound;

the return movement, transmitted through the abutment 22; opens them. VThe adiustment of the said abutment serves to determine the relative position of the nipper lever and its connected parts with respect to the position of the nipper cam, and when thus set the connections of the spring with its attachment lugs 16 and 181 are adiusted to put the spring under tension and thereby hold the cam-operated member against the abutment. As thus assembled the nipper lever and the positively driven cam lever will be maintained in a substantially fixed relation butA with the capacity of relative yielding movement of the one upon the other against the tension of the spring. Such movement of yield, however, may not take place in normal operation of thecomber to any appreciable extent or' to any extent more thansuiiicient to absorb the shock and vibration and accommodate slight variations in the contour of the cam surface of the nipper cam. The counter abutment formed by the lower lug 21, onvk the nipper lever, is

therefore seldom required and its main function is to maintain an approximately proper relationship of the cam-lever thereto during the assemblage or overhauling of the machine.

1 claim the following:

1. In a comber having several comber heads, the combination with nipper-knives of the respective comber heads, a common nipper-shaft having fast thereon a number of nipper-shaft arms, and adjustable connections between said nipper-shaft arms and said nipper-knives, of a nippercam, a member reciprocated thereby, a common nipperlever fast on said nipper-shaft and adapted to be operated bv said member to rock said shaft, one of the two last-recited elements having an adiustable abutment, and a normally-stressed spring-yielding driving connection between said elements holding said adiustable abutment against the other of said elements and permitting the reciprocating` member to move relatively to the nipperlever during the normal operation of the machine. v

2. In a comber` the combination with ninper-knives of a number of combing heads, a nipper-shaft. and connections between said nipper-shaft and nipper-knives, of a nippercam. a member reciprocated thereby, a nipper-lever fast on said shaft. said nipperlever being forked with one of its arms cooperating Vas an abutment with said member, and a spring connecting the other arm of said nipper-lever with said member and maintaining the latter against said abutment. f

3. In a comber, the combination with nipper-knives of a number of combing` heads, a nipper shaft.v and connections between said nipper-shaft and nipper-knives, of a nipper-cam, a member fulcrumed on said shaft and reciprocated bv said cam, a forked nipper-lever fast on said shaft and comprising a short arm and a long arm, said short arm coperating as an abutment with said member and the latter being extended beyond its point of engagement with said cam away from said long arm, and a spring connecting such extension of said member with said 'longarm and constituting a yielding driving connection therebetween normally holding said short arm in contact with said member.

In'testimonywhereof, l have signed this specification in the presence of two witnesses.

HENRY A. OWEN. Witnesses:

O. L.v Owniv, Y R. L. METGALF.

Copies of this patent may be obtained for ve cents each, by adressng the Commissioner of Patents.

Washington, D. C. 

